Catherine, the Duchess of Cambridge, is as charming a woman as can be found. However, being part of a royal family isn't easy.

With Christmas around the corner and the high-profile Christmas day lunch at Sandringham to come - a British royal family tradition - Kate Middleton must have her hands full with deciding what outfits to wear, particularly given this is the 29-year-old's first royal Christmas.

Recently, for example, Kate was seen sporting an elegant black velvet evening gown at a military awards function; the dress was designed by British fashion house Alexander McQueen's Christmas collection and rumor has it two evening gowns have also been ordered.

Kate will need a casual outfit for breakfast, a smart outfit - and a hat - for the morning church service, a dress for lunch, a cocktail dress for early evening drinks and a full-length dress for the evening meal, said fashion expert Jean Broke-Smith, in a report by Grazia magazine.

The golden rule is nothing too short, too revealing or too gaudy, she added.

The good Duchess must be quite confused.

She doesn't want to overdo it, but if she goes for an understated look, it's like she hasn't made an effort, said Sheridan Bowler, 19, a guest at the military awards function held earlier this week.

Apparently Kate told Sheridan she was looking forward to Christmas with Prince William's family, and said (would have) to change dress 5 times on Christmas Day.

Check out the different looks of Kate Middleton till Christmas Day...

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Photo Credit: Reuters. Catherine, Duchess of Cambridge, leaves after watching the beginning of the Calgary Stampede parade in Calgary, Alberta, July 8, 2011.
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Photo Credit: Reuters. Britain's Catherine, Duchess of Cambridge, arrives at the Santa Barbara Polo and Racquet Club for a charity event held in support of the American Friends of The Foundation of Prince William and Prince Harry in Santa Barbara, California July 9, 2011.
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Photo Credit: Reuters. Britain's Catherine the Duchess of Cambridge arrives at the Machan Express Coffee bar in the centre of Birmingham, August 19, 2011.
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Photo Credit: Reuters. Britain's Catherine, Duchess of Cambridge arrives for the wedding between Zara Phillips, the eldest granddaughter of Queen Elizabeth, and England rugby captain Mike Tindall, at Canongate Kirk in Edinburgh, Scotland July 30, 2011.
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Photo Credit: Reuters. Kate Middleton
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Photo Credit: Reuters. Catherine, Duchess of Cambridge attends the annual Remembrance Sunday ceremony at the Cenotaph in London November 13, 2011.
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Photo Credit: Reuters. Catherine, Duchess of Cambridge, attends an official departure ceremony in Calgary, Alberta, July 8, 2011.
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Photo Credit: Reuters. Britain's Catherine, Duchess of Cambridge arrives at Centrepoint?s Camberwell Foyer in London December 21, 2011.
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Photo Credit: Reuters. Britain's Catherine, Duchess of Cambridge arrives with Denmark's Crown Princess Mary during a visit to the UNICEF emergency supply centre in Copenhagen, Denmark
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Photo Credit: Reuters. Britain's Prince William and his wife Catherine, Duchess of Cambridge and Prince Harry leave the VIP marquee during a military awards ceremony at the Imperial War Museum in central London.
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Photo Credit: Reuters. Prince William's wife, Catherine, Duchess of Cambridge, arrives at Los Angeles International Airport July 8, 2011.